Prompt
I don't want to use SendGrid. What else is there?
Latest observation
Oct 3, 2026
OpenAI APIWeb search: off
Yes—there are plenty of alternatives to SendGrid, depending on what you need:
Transactional email APIs
Good for password resets, receipts, alerts, etc.
- Postmark — excellent deliverability, very strong for transactional email
- Amazon SES — very cheap at scale, but more setup and less polished
- Mailgun — flexible API, good tooling
- SparkPost — solid deliverability and analytics
- Resend — modern developer-friendly API, popular for startups
- Posteo? not really an API; better for personal email rather than app sending
Marketing / newsletters
Better if you need campaigns, automation, and lists.
- Mailchimp
- Brevo (Sendinblue)
- ConvertKit
- Campaign Monitor
- MailerLite
Self-hosted / open-source
If you want more control:
- Postal
- Mautic (more marketing-focused)
- Listmonk (great for newsletters)
Infrastructure options
If you want to send from your own app stack:
- Amazon SES + SNS/Lambda
- SMTP through your hosting provider
- SMTP2GO
- SocketLabs
Quick picks
- Best for transactional email: Postmark
- Cheapest at scale: Amazon SES
- Best modern developer experience: Resend
- Best for newsletters: MailerLite or Brevo
If you tell me what you're sending—transactional emails, marketing campaigns, or both—I can recommend the best fit.